Shelly 1PM Gen4 is the first Matter standard compatible, multi-protocol retrofit relay module from Shelly. It supports Wi-Fi + Bluetooth protocols (with Shelly's cloud or as locally working smart home system), as well as Zigbee 3.0, so it can be paired with a range of Zigbee 3.0-compatible hubs. The Shelly 1 Gen4 supports only wet contact switching as it features a power meter, so it is suggested to use behind a wall switch or wall socket.
